Third-person singular simple present indicative form of prestress

Having been stressed before use

(linguistics) Before a stress (emphasis placed on a syllable of a word).

(construction) To apply stress to structural components in order to produce a tension that counteracts the loads to which the component is subjected in its designed use.

present participle of prestress

concrete with stresses induced in it before use so as to counteract stresses that will be produced by load; often contains stretched steel bars or wires called tendons